Anagram Airport Round Trips

I was looking for commercial solo XC candidates from my home airport
using Kyler Laird's search engine. I fly from 7S3, and I found that
both 73S and S73 (or even both in one trip) were suitable. I already
knew that 3S7 was nearby, but unfortunately 37S adds about 800nm to
the trip (there is no S37).

Recently Paul Tomblin hooked me up with a copy of the FAA airport
database, so of course I had to write the world's ugliest Perl script
to find all the collections of anagram airport identifiers and then
calculate the shortest round trip. I only kept ones with at least 3
of the 6 possible permutations. Here are the first few (by total
distance) for each number of permutations (first and last airport is
the same, for easy flightplanning -- I expect someone named "Guido"
from aeroplanner.com to show up on my doorstep any minute):

I want to fly one just to file with WX-BRIEF... "Route of flight will
be uniform zero one one uniform zero zero uniform one one zero uniform
zero one uniform uniform one zero and back to uniform zero one."